A.主集同时监听1X和DO信道,分集作为DO接受分集
B.主集监听DO信道,分集监听1X信道
C.主集监听1X信道,分集监听DO信道
D.主分集同时监听1X和DO信道
(文)Dear Professor Liu, Please accept my greeting from New York. (尊敬的刘教授,请接受我来自纽约的问候。)I am just beginning my graduate (研究院) studies here at this university. It is the third week of classes now. My roommate, Tom, is also. How are you getting on? Are you still working on your paper now? Please say "Hello" to those who have taught me I miss all of you very much Love Wang Hui Wang Hui is writing to her former teacher.
A.T
B.F
A.I regret to inform. you, therefore, that we cannot give you a refund.
B.Therefore, I am pleased to inform. you that we cannot give you a refund.
C.I regret to inform. you, therefore, that we can give you a refund.
D.Therefore, I regret to inform. you that we cannot accept your request.
A.The high-income and low-income groups are two separate decision-makers. They decide whether they will accept the environmental protection project on their own and make optimum decisions for themselves according to the principle of maximum utility.
B.The high-income group and the low-income group are two independent decision-makers. They decide whether to accept the environmental protection project or not, and make the best decision for themselves according to the principle of maximum utility.
C.High-income groups and low-income groups are two independent decision-making bodies, each of which decides whether to accept this environmental protection project and make optimal decisions that are beneficial to themselves according to the principle of utility maximization.
D. The high-income group and the low-income group are two independent decision-making subjects. They decide whether to accept this environmental protection project or not and make the best decision for themselves according to the principle of utility maximization.
A.与宇宙沟通需增强对于数学语言的研究
B.数学语言可能是人类与宇宙沟通的首选
C.数学语言相较其他语言存在很多优势
D.数学语言比较容易被地外文明所接受
A.bind,accept,listen
B.bind,listen,accept
C.listen,accept
D.listen,read,accept